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6530205143 = 711521162779
BaseRepresentation
bin1100001010011101…
…10000010111010111
3121212002201210101202
412011032300113113
5101333213031033
62555552543115
7320552553650
oct60516602727
917762653352
106530205143
112851148860
121322b51a9b
13800b98317
1445d3c8527
1528346a8e8
hex1853b05d7

6530205143 has 16 divisors (see below), whose sum is σ = 8157231360. Its totient is φ = 5078673600.

The previous prime is 6530205131. The next prime is 6530205163. The reversal of 6530205143 is 3415020356.

It is not a de Polignac number, because 6530205143 - 212 = 6530201047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530205163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41273 + ... + 121506.

It is an arithmetic number, because the mean of its divisors is an integer number (509826960).

Almost surely, 26530205143 is an apocalyptic number.

6530205143 is a deficient number, since it is larger than the sum of its proper divisors (1627026217).

6530205143 is a wasteful number, since it uses less digits than its factorization.

6530205143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163318.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 6530205143 is about 80809.6847104355. The cubic root of 6530205143 is about 1869.1419078674.

Adding to 6530205143 its reverse (3415020356), we get a palindrome (9945225499).

The spelling of 6530205143 in words is "six billion, five hundred thirty million, two hundred five thousand, one hundred forty-three".

Divisors: 1 7 11 77 521 3647 5731 40117 162779 1139453 1790569 12533983 84807859 593655013 932886449 6530205143